Escapement mechanism for type-writers.



W. 'R. POX. ESGAPEMEN T MECHANISM FOR TYPE WRITERS.

AYILIOATION FILED JAN. 21, 1907. 97 ,371 Patented Dec.20, 1910.

2 SHEETS-BEBETI.

Witxgesses: llQVQlQtOF, f

w. R. P0X. BSOAPEMBNT MECHANISM FOR TYPE WRITERS.

APPLICATION FILED TAX.21,1907,

Patented Dec. 20,1910.

1 UNITED STAQEM$ENTOEFICE.

Ecmnmfifim MECHA ISM T011, TYPE- RITE S;

i mtf Patented Dc. 20,1910.

Beit known that WIIJJIAM'R; Fax, a 'ci tize-n of the United Stat-es,- residin at Grand Rapids, in'the county of Kent, mm ofMichigdn, have inventedcertaiin new and" lmful I1 rapro'vement-s in Escapemenfg Mach :1 .nism =forflypeWVx-itws of which-t-he follow" ing is a specification. 4

This-inventipn relates to impmvements 1n type riting machines and "especially to the m hifling-i'he reiatioh :pbsition of Hm esznpemeht ogs, whereby the-me:

x nent. can be shifted from the'z'egulai 1'1 spam. escapemel'it, 'andvine ve'r and third: to provide, a-constru mnuf 6: am-

111cm doga which can be -read11y re'kaseu am thrown out of angagemenb 'w'iihjthfi eazapemam: a 'heez}. for liberating the 021;! ge to permititw 1ncyvethrough cm iside'ra is dis- 1* 'uri'l'xe' will defiilitel appear from Lh'e {ictaiied descripfiun to fallow .1 ni cmli plish-the abject-s bfimyinventim'i the devi-J s" g'ndjmearisdescibetl in the s *ificn ion.

. 1' 316337537 6.6611911 "a poinu me (whims. F '7 l P01 awn. Offcb typeivriier'snfiisieni fin 51 1 an auftgumpar xyingdrawing timwning a p "of H115 specification, in which:

' l-lgmre 1 is. adetail rezu elevation'view ihd wnn mchn'ni of hype s of the man" being plan viswy the edirrF-ig. 1;. 'Fig. 3 2m detail secti01m1:.,vim takenvori m irespunrling' to. iinlffi of' fiig. 1, being shown infal'l line; luofliing (1 the iighz-Qf that figure; 14 is a.

similarly gn'iarged detafl secnona! ViEiW taken on a lhwudorre'spphding to fine- 4 4 hf Fig. L'lobking toward the laffi of that aBeiln'gf-set for the rizgular' feed Fig: 4 1 "is; a -syiw ofthe upper, parts of the=f=dogs appearing in Fig set' fora detail fielfevatinn fmrm the-faint side of the mahin; bfithe escapemen't, beingfi'orn'tlle rear sizde o'f Fig. 1 it stands, showing pecially the release lever and the adjusting lever mga-iheirr'elation to the e sca-perneht dogs or paw'ls; Fig.- 5%, is a detail elevation view of the s1'ide22; FigL'G is an enlarged 'detaii sctional flew, taken dnline 6--6 of F ig; slimming-the relations 0f the carriage and. itsfack'bait0 the escapetnent wlieel; Fig.- 7 is an @1113 ged' detail sectional View taken :1 line 7'--7 of Fig; 1, showing the tension'conneQ-tion and stop mecl mnism for controi'iingt the thmw of the s'c'apemeni showing the 'annecting rod to the usual 01' any convenient es'caper en't bat beneath the key levers of 'th ma'c'hl 33s" a detail sectional View through the pinion 11 Snlowingits rehltin t0 th rabk 9 o f the carrin gs.

Hence refer to similar parts thr'oughqmt the several news, and all of thesactlonal v'iaws are taken looking in the Chrecrmn of the through (see Fig. 1.). {The entralpartofrock shafi 2 issug aported near the esca.pe by 3 part- 2 011' the' machine This ruck bill" is atlmted by 21 pair ym's, abi struck out of Shaw; n 2i, and re aimed suit-X020 set screws; Adj usiable kgpwzwr? m jug r0615 n Connect- 113" rain the Tar z'md 5 in a suit :ibk EPFLCGI rm-r beneath The key ieve The said spacer: bar and key is/vers beingbf {1m ":11 farm, are mot here ill:lstmt er as my im ontion does: nat'pzr'tain to the'saum A11 :Hiijnfiflfle lever G1 awn adjustame 13 thgi Sit sk'rmv 3F. is cozmriacwd by a Spring. 1- to an eye iwmwm "Elierfids S, zmfl, Wthis ineans,,thehan.wn ofi the'escapemei is ad jusfed, this tension being made snfikiiit to insure the prompt rem],

0:0 01' the said arms. 3 tend (is-W11 W Gare iniovided to Emit the I of the dogs when the spacer" bar is rvlease'd and jHSt sufficmnt" tension to accomplish this 'prop erl'y withoutoccasioning unnecessary Work.

Tn the rock shaft- 2 1s sgacured the dog bl'ocklfi winch E I'Qferably made of sheet 1 port the lever and odjustit beforetlle dog metal folded upon itself-end placed upon the -rock shaft- 2-and secured in position by a Secured between the,

suitable eet screw; sidesrhof, this dog block are a pnir of levers 17 Which'nre transverse to the shaft 2, and on the fulcrum of these levers is pivoted one ofthe dogs 14 on the pivot 18, endtoward the free ends of the levers on the pivot 19 is secured the op ihsitc dog 13. A is on the upwarly projecting side ofthe 'dog block 17 between the projecting rtion's ofthe dogs tov retain them proper y 'sepa-' ratcdfromieach other and in operative p- SitlOtl'r Tlie dogs 13 and 14 ore urged toward" each other by tl coiled spring 16 which couples them together. lhe'dogs'13,'14, en-

. gage iinder the teeth of the escapement wheelv1O which are square on thc under side andleveled on the n per s de, and vrelease the some by the 'mg of the; biirf2wvl1ich, when the (logs are in one jmition-. thnt.in-"

- di'cutetl ill- '1igi'kmleuses theesea'pement wheel on theupstrokefand nctueting the dog l' l 'so that it is' released and the tenth of wheel lO indieated by clotted lines-drops ffaehigrtdietance onto the dog. 13, and he; fe'edlgof the, carriage; occurs on the upstroke when the dog 13 withdrawn. \Vhenthe 'dogsilore adjusted to the opposite direetion indieated in'Fig 4-the escaipement wheel I iii} released on the down-stroke; The 13 then' hcing just'abo've thesqunre face 0 the tooth of the escapemttiit Wheel- 10 permits the filll spacing, antt the 110g 14 swings just under the next tooth' of the wheel 10 011 the upstfioke, to permit'thB dog s to dismfgage the teeth of the esca'pen'ient wheel and sl i g itly ahoyethissquare under surface,'.

may for the next evolution,

'lhe'dogs are shifted into-the different positioijfl bythe. slide 22 through the doghlockf 12 iyhiehf hns-stope 24 25,10 lilnit its-movement. ,1'undinclined portions 221, 22-1,; under each of the lovers 17,,the ends of vthe, levere being} i$.t0litlt!tl nt-2l :m'darranged to 'he- (res 23. with 'lockiiign depressions.23. into which the ends, of tlje l slot-edi po'n-hythe in -lined sit 21 drop" when-they ureelevat'od 'ere ing the depressions 2.3 are not sqhere-shoutdered, -l )l l1 .roundml or inclined so thnt 'fthe slide can 'lw'moved lo the m'lglilnl pnsltmn by oyorconnug the lieeistnnue; The slide 22' is oetuntvdfhy the lever 28 wl iell' is pivoted tojan arm Qti iyhiel is formed"integral with the dog block 12 although lt'n'iight,lbe-osepa- 'rute nl'm Secured thereto. This arm 26 also eurriesthe lever 29 which is actuatedthe ommection -31 toe suitnljlekev lever. or other port in the n'mchincs, for releasing tlle esmpmnentdogsi A the orm 21' to which the lever .29 ls'seou'red 'is formed integral with,

the do; block, it is q'mssihle to fit nnd'enppin 15 -some pret etermin'ed: Qitiomfwithout him--- is arrange eretf 1n-t is lightiTher nnlch better ii'dya'n Havingthusdesen my invention what 1 is transverse to'the' rock she t-* a pair of,

block is insertediin thejmachine, so that the I m nnectioucan be madp eiterwurd, and the ad uetment o f the fiyo'ts tor the shaft will no interfere with eprope'r reletionof the lever and the dogs. '1 e and of the'lei'er 29 isarranged to net npont-an inclined log 32 on the face of the dog'14 tn throw "it out of enge emejnt with the e cepement wheel 10- there y liberating'the-e'scapementwheelzami' permittin the carriegeto move freely to,.'7l5

drance by the dogs; eleven-.17: drop'bygravity when the"slide QQTiQ- jflthdraWn and are also-tie ressed by thes ring '16 whieh obliquely foigit at jpfnrpoee' in addition to drawing the tqifverd each I i V v I The eseapement'nheel 10 ti neetion-at this time, because-my ls'hefe confined to the particule 1 m i ment of the leverfor actuating thi dog's.

This is found very useful in. eonl'iection withtnb'u'la'tlng devices, or; onv other-{devices which require the freeing'o the do'geto' per- Init the rapid movementjo-f the chi ;to'

'somepredetermined' point-.1 :i:

I'desine to'13em'ark thgtflI.haveshowiiva rock shaft 2 of coneiderable length'fyyith e support 2'- at-ornea f' thedogblock to pre- 1 vent the sagging or depressionfdf the sa'tne.

It is writing-however, that a shorter one might be used and may; of- {the-'0 jrative advantages of] myZ-dvioe secured, .t "e shafted in .faetbeingvahortened- -nntilit amounts to 9 v 'eubstan'tially' no more. the 'ujourna'l, beer-:1 ng; and I wish. the-term ock shaft-I its; used;

I claim its-new andfdesire to secure by Letters Patent is z" h wbenlntgmwhahim r typ er, the nomination-wit the fa I mi p mn. 4 pinion' eelw iii ,vwith said-ta. i 1

with suitable means 'forconnecting the some block I 127ivith min-rm 26.; secured tothe metal euryed npongiteelf, the lime ofiwh' vers 17 pivoted .tliesi ch m.

es on-teed: v

block; a dog 14 pivoted on the fulcrum of the lovers; a dog 13 pivoted on the long arms of the levers; a pin 15 between the dogs to retain them properly spaced; aspring it for holding the esca-pernent dogs normally toward each other and against the pin 15-; an adjusting slide 22, with inel-ined face, for controlling the levers 17 to control the relative heights of the dogs 13-.-14; a lever 28 on the arm 26 for controlling the adjustable slide 22: an inclined lug 32 on the dog 14; a lever 29 fu-loru-med on the arm 26 and ary ranged to engage the said inclined lug on frame: a rock rhait suitably s'nppm the dog 14 for throwing the dog o ut'oi engagement with the escapement wheel; and. connections "to said lever for actuating the same. wherebythe escapen ent mechanism readilv unoer the control of the operator and (am he released. all eo-a'cting substantially as described and for the purpose specified,

2. ln the esmapementmeohanisi'a for a' typewriter, the combination with the frame of a t mewriteig of a carriage; a rack on said carriage: an escapement- Wheel;- with a pin.- ion moshing with said rack, iournaled on the frame of the machine; a rock shaft 2 with suitable means for connecting the same to the spacer bar of a typewriter; a dog lilfiCk '12 secured to the rock shaft .2, the same l'ieing formed of Qheet metal curved upon itself, the plane of which i t isverae to the rock shift: a pair of levers 1,4 pivoted liotwee'n the sides of the dog block; a dog 14 pivoted on the fulcrum of the levers; a dog '13 pivoted on the long: arms of the levers; a pin 15 between the (logs to retain'theni properly spared av spring [6 for holding the tH('\]I-Pii'ltl'll (logs normally toward each other and against the pin 13; an adjustingslide 9% with inclin d face, for controlling" the le- 3 1? to control the relative heights of the (logs l3---14; alever for controlling the adjuatahle Slitlt all (.(lfiliflfl substantially as deseiil'ied and for the purpose apt-(rifled 3. In the eacapemeni i'nm'rhaiiifsni for a typewriter. the (omliiinaiion of the frame of th lvpe'writer: a carriage reeiprocating thereon: a rack on Raid -arriage; an ramp-t inont Wheel with a pinion ineahing 'with said rarh. liourualed upon the said tnaewriter ed on said t ara-writer frame. with mean, for (,-|:l'l neriiug it to the apaeer bar; a (log block carried hr the said rook shaft: a lever member (11: F-':ll(l log hloeli: a dog pivoted to the folwru n oi the Said lever member: a fee-"0nd (log pivoted to the Mid lever member: suitahle stop nieanw for the said dogs: a nd means for adjusting the said lever nieml'iora to control the relative height oi the (1' 0 919 (wanting for the purpose sperilied.

4-. in the aacapement niecl'ianism for a typewriter, the combination of the frame of the typewriter; a carriage reciprocating 'rietl by the said rooit shaft:

thereon; a rack on said carriage; an escape"- merit wheel with a pinion. meshing with said rack, join-nailed upon the said typewriter frame; a rock shalt suitably Supported on said typewriter fra-me with means for connecting it to the spacer bar; a dog block can ried by the said real: shaft; a lea-er member on said tlogililook 1,31 rlogp-ivotetl. to said (log block; a second (10;; pivoted. to the said lever member; suitable stop means for the said dogs; and means for adjusting the said lever nieinherto eontroi the relative height of the (logs, oo-actinglor the purpose epoch ed. In the eimapement mechanism for tvpewriter, the combination of the frame of the type .iirr; 'earria'ge reciprocating thereon; a rack on said. carriage: an escapeinent Wheel with a pinion meshing with said rack, 'jrmrnaleri upon the said typewriter frame; a rock shaft suitably supported on said typewriter frame, with means for eonnesting it totl-ie spsw'er har; a dog block car- I a lever member on aaicl (log hloeit; a dog; pivoted to fulcrum of the said lever member; a seeontl flog pivoted to the-said lever member; suitable atop means for the said (logs; and means for adjustir" the said lever members to control the relati e height of the dogs, consisting of an mljuhtaiblp aiidem'ith alever for control ling the some, co-aetinglor the purpose specified.

6. In the estapeinent mechanism for a a rock shaft suitably au'pposted on on said dog hloi'zlt; a dog pivoterlto said (log block; a second dog pivoted to the said ie'ver ine'mher; suitable stop meanalfor the said dogs: and means for adjusting the said lever member to control the relative height of the dog's, cousistingo-t an adjustable slide with a lever for controlling: the same, (o-acting for the mrpose specified. i

In an cacao nient mechanism fora pon 'iter, the combination of the typewriter frame; a carriage reciprocating ihereon; a raoltouosaitl marriage: an e'e ea'ponient Wheel. with a pinion meshing with said 1:l('l jonrnaled upon the said typewriter Frame: a ro k shaft suitably supported by the said type riter frame. with means for eonnect ing; hlo the spacer bar; a dog block carried l) tinsaid rook shaft, having a projecting arraextendinp; in the direction of the mid rook shaft: a pair of dogs carried by the said (log 'hloelc, one of which carries an inclined lug; lever pivoted on the arm on the Sillfl (log lolook and arranged to Contact with thezinclined lug for swinging the dog out of the operative position; and' connecons to .s'aid ever, for the pa ose specified. =8. Inthe esoapement mechan sm for a typewriter,j'.the f combination with theframe of a typewriter-fife carriage; an escapement mechanismt erefor; a rock shaft-2 with suitablemeaiis oohnectingtho'same to fee l spacerbarofatypewriter'a do block 12 d-the shaftQ, the en ine bein Jaemeapnhea-mau curved upon itsel which is transverse to the rock us ges: sha rs-pair :j'of'levers'17 pivotedbetween 1 2' the 'in- 1 W i face, foricontrollin'g the levers 1 136-1451 lever 28. for control mlgs able slide, 22, all co-acting en t the dog block; a-dog 14 pivoted onathefiulcrum of the levers;'a dog 13 piv-- armsQof-the; levers; a pin retain them properly "holding the escape-' "ardi'each other and a iilad iusting'slide 22,

'11 to-eontrol the relative hei ts of the dogs the adjusttant-ially as and for, the purpose specified.

. ;9,'.'In rtii ei-escapement mechanism for a pewrite'r, the combination of the frame of.

- tge typewriter; a. carriage reciprocating t ereoniymn escapeinent mechanism there for; a shaft suitably supported on said ;typewriter' frame, 'with meanslfor connecting'it to the spacer bar'; a dog block carried by.

the. said rock' shaft; a lever member on said 'd'og'block; a dog pivoted to the fulcrnm of the aidlever member; a second do ivoted to; eliisaid lever member; suitzfii e stop means'f'or the said dogs; and means for adiustingth'e said lever member to control the relative heights 'of the dogs he P rp e sree '1 p ir x co-acting for Injtho' eseapement' mechanism for a 'ieombin'ation of the frame of f a typewriter acarnage reciprocating therement mechanism therefor; a/ rock shaft suitably supported on sa d type i-writer frame, with means-for connecting it' to the spacenbama dog block carriedby the said crock share; alever member-on said dogl rlock; adbg'pivoted'm said dog block;

a second dog pivoted to the said lever mem- V ml-f; suitablestopmeans' for thesaid dogs;

,itndmeans "arifiuetin the said leverto ontrotthe ative heig t of the dogs, 00- uating for I purpose specified. 1,11; In th" e'scapement mechanism for a typewriter, combination of the frame of the typew tor; a carriage reciprocating thereon; an aiscapement mechanism thene-' for; 'a' rocli ft suitably supported on said typewriter frame, withmeans for connect ingnit tothe racer bar; a dog block earned by the said I ck shaft; a lever member on said dog bloc a dog pivoted to. the ful; crum of the id lever member; a: second dog pivoted tioithe-said lever member suitable stop means for thesaid dogs; and means for adjusting the said lever member to con-. trol the relative-height of the dogs consisting of an adjustable slide with a lever for controlling the same, co-acting for the pur- 7o pose s cified.

12. n the escapement mechanism for a typewriter, the-"combination of the; frame Of'the typewriter; a carriage reciprocating thereon; an escapement mechanism therefor a rock shaft suitably supported on said type writerframe, with means for connecting it to the spacer bar; a dog block carried by the said rock shaft; a lever member on said do block; a dog pivoted to said dog block; a o pivoted tothe said lever member; suita 1e stop means for the said dogs; and means for adjusting the said lever member to control the relative height of the dogs,- consisting of an adjustable slide with a level" for controllin the same, co-acting for the purpose speci ed.

13. In an escapement mechanism for a typewriter,'th c combination of the typewriter frame ;-a carriage reciprocating thereon; an escapement mechanism therefor; a rock shaft suitably supported by the said typewriter frame, with means for .connecting it to'th'c spacer, bar; a dog block car- 1 ried by the said rock shatt, having'ia pro- 35 jccting arm extending in the direction of I the sairLrock shaft; :1 pair of dogs carried 'by the said dog block, one of which carries an inclined lug; a lever pivoted on the arm on the said dog block and arranged to con- 100 tact with the inclined lug for swinging the I dog out of the operative position; and 'connections to said lever, for the purpose ficd.

14. In the escapement mechanism of a typewriter, the combination of the typewriter frame; a carriage with escapement means therefor; 21 dog block; a lever on the 'dog block with a pair of dogs one-of which speciis suitably supported thereon; and anadustable slide underneath the lever, having inclined f ces for moving the lever and notches fo engaging the lever and locking the slide in place, co-acting forthe purpose specified.

In the escapement mechanism of atypewriter, the combination of the typewriter frame; carriage with escapement means therefor a dog block; a lever on the dog block. with a pair of dogs-one of which is suitably supported thereon; and an adjustable slide underneath the lever, having inclined faces for moving the lever, coacting for the purpose specified.

16. Inthe escapement mechanism for a typewriter, the combination withthe frame of the typewriter of a reciprocating carriage thereon; escapcment means between the said carriage and typewriter frame; a dog block pivoted on the frame of the machine; a pair of pivoted dogs suitablf supported; an into the said lever, for the thereon; escapement means between the sand carriage and 'tygewriter frame; e dog block pivotedon the ame of the machine; a pair of pivoted dogs suitably supported; an inthe embination with the frameclined log on one ofsaid dogs; .a-lever fu lcrumed on the dog block, one end of which contacts with the inclined hig for the pur specified.

In witness Whereofi-I have hereunto set y hand and seal in the presence of two wltnesses.

WILLIAM R. Fox. s 8.1

Witnesses ELLA DE Vnms, A. YWALCOTT.

' pose of moving the same, for the purpose 

